Fastening-inserting machine



g- 1942' J. LANCASTER FASTENING-INSERTING MACHINE Filed Aug. 29. 1940 5 Sheets-Sheet 1 1942 J. T. LANCASTER 2,293,834

FASTENING INSERT ING MACHINE Filed Aug. 29, 1940 5 Sheets-Sheet 2 Ill A118. J. T. LANCASTER FASTENING-INSERTING MACHINE I 5 Sheets-Sheet 3 Filed Aug. 29, 1940 5 Sheets-Sheet 4 Filed Aug. 29. 1940 25., 1942- J. T. LANCASTER 2,293,834

FASTENING-INSERTING MACHINE Filed Aug. 29, 1940 5 Sheets-Sheet 5 Patented Aug. 25, 1942 John '1. Lancaster, Newton, Mass, assignor to United Shoe Machinery Corporation, Fle'm ington, N. .I., a corporation of New Jersey Application August 29, 1940, Serial No. 354,731

88 Claims.

This invention relates to machines for inserting fastenings in work-pieces, it being herein disclosed in connection with the attachment of a heel to a shoe by a screw driven through the heelseat of the shoe into the applied heel.

A well-recognized practice in shoemaking is to include in the means for fastening a heel to a shoe a screw, which is inserted in a hole drilled through the heel-seat into the heel. This screw may be temporary, it being removed after an attaching adhesive has set, or may be permanent, becoming part of the finished shoe. While the present invention is applicable to either purpose, it has some features which render it especially useful for the insertion of a temporary screw, this occurring through a passage in a last within a shoe. Its object is to minimize the time required for the operation, to relieve the operator of effort and to effect secure and accurate attachment with work difiering in character.

In the attainment of this object, as a feature of the invention, I combine with means which operates to form a hole in work carried by a movable support, as by a drill, and to insert a fastening in the formed hole, as by a screw-driver, means acting under the power of the machine for moving the support to present the work to the operating means at different stations and hold it for the successive formation of the hole and the insertion of the fastening. The operating means, or drilling and inserting tools, are also preferably moved under power to determine their time of operation. In the illustrative embodiment of the invention, there is a rotary and reciprocatory drill and a rotary and reciprocatory screw-driver or fastening-inserting device, while a support, which initially positions the work to receive the action of the drill, is under the influence of means which moves it to receive the action of the inserting device, and then returns it by reverse movement to its position at the drill. With the support at the inserting position, the inserting device may be retained temporarily in its inserting relation to receive the succeeding fastening, and then retracted before the return of the support. While the support is at its initial position, the drill, or other tool, is preferably advanced through a portion only of its operating movement and then stopped to permit the application thereto of a last-passage, serving as a gage for the work, its operating advance thereafter being completed. In many respects, my improved machine is particularly adapted for operating upon lasted shoes, the drilling and screw-inserting operations taking place through a passage in the last,

Other features of the invention are concerned with the mounting of the drilling and screw-indifferent positions of the work upon its support,

as for different heights of lasts and for different angular relations of the last-passages; means for clamping the heel upon the heel-seat of the shoe; the manner of shifting the work-support between the two operating positions; means for obtaining a divided operating cycle; mechanisms for rotating and reciprocating the drill and screw-driver; and the arrangement of screw-holding fingers associated with the screw-driver.

In the accompanying drawings,

Fig. 1 shows my improved fastening-inserting machine in side elevation, with parts broken away;

Fig. 2 is a broken top plan view;

Fig. 3, a vertical sectional detail on the line III-III of Fig, 2;

Fig. 4, a front elevation of the upper portion of the machine;

Fig. 5, a vertical sectional detail on the line V--V of Fig. 2, showing the means for changing the angle of the work-support;

Fig. 6, a view, chiefly in transverse section in the direction of the height of the machine, of the drilling and screw-inserting mechanisms;

Fig. 7, a horizontal sectional detail of the means for adjusting the work-support vertically, taken on the line VII-VII of Fig, 6;

Fig. 8, a vertical sectional detail on the line VIII-VIII of Fig. 2, bringing out the workclamping mechanism;

Fig. 9, a top plan View of the screw-inserting chuck;

Fig. 10, an enlarged horizontal section through the chuck on line X-X of Fig. 6; and

Fig. 11, a detail in perspective, illustrating the rack through which final pressure and locking effect is applied to the heel-clamping members.

Mounted side by side in the machine, at two operating stations, are a drilling mechanism A and a screw inserting mechanism B (Fig. 6), each 'of these having tools continuously rotated during the use of the machine and elevated alternately to perform their operations. The work may consist of a shoe S upon a last L, and a heel H (Fig. 8) which is to be clamped temporarily to the heelseat of the shoe. A passage Z, extending through the cone of the last, is adapted to admit the drill of mechanism A and a screw b operated upon by mechanism B. The work is supported upon a mechanism D, which presents it first to the drill and then to the inserting means, the movement from one to the other and the elevation and withdrawal of the tools being performed automatically under the power of the machine. The screw is supplied to the inserting mechanism manually by the operator.

The machine has a frame-column [0, which is inclined somewhat forwardly to give the operator more convenient access to the work-supporting mechanism D, which is abov the upper extremity of the column (Fig. 1). In the column is situated the drilling mechanism A and the screw-inserting mechanism B, they being carried upon a casting l2 with which they may be removed from the machine as a unit. The worksupport D consists of a lower carrier [4 (Fig. 8), upon which a lasted shoe may be placed with the cone of the last resting upon a finished surface or table at [6, and an upper carrier I8, upon which heel-engaging arms 20, 20 are mounted for bodily and pivotal movement to clamp and release a heel applied to the heel-seat of the shoe upon the lower carrier. The drilling and inserting mechanisms are raised and lowered to perform their operations through unvarying distances, and, since lasts have different vertical dimensions, and it is desired to have the tools operate always upon the work to the same extent, the entire work-support D has means by which it may be raised and lowered. This compensates for differences in the vertical position of the work. Mounted on ways 23 attached to the rear of the frame H] is a slide 22 (Fig. '7) having at its opposite sides horizontal projections or brackets 24, 24, upon which are fulcrumed at 25, 25 generally vertical levers 26, 26 (Fig. 6). These levers oscillate between guides 21 attached to opposite sides of the frame. B tween divided walls at the upper extremity of each lever is pivoted a block 28 (Figs. 2 and 4),

having extending inwardly from it toward the opposite block a projection 30. Upon these projections, the lower carrier I4 of the work-support is pivotally mounted. The common axis of the two projections lies at the intersection of the table-surface I6 and the longitudinal axis of the passage Z in a last positioned upon the table (Fig. 8); This allows the necessary angular movement of the table, with the minimum opening therein through which the mechanisms A and B are to operate. Formed with the member furnishing the ways 23 is a rack 34, with which meshes a segmental pinion 36 (Fig. 1)

fast upon a transverse shaft 38 rotatable in the slide 22. Mounted to turn in the right-hand bracket 24 is a shaft 49, joined to the shaft 33 by worm-gearing 42. At the forward extremity of the shaft 40 is a crank 44. The operator, by turning the crank, may rotate the pinion 36, which, acting upon the stationary rack 34, will raise or lower the slide 22 and the work-support D, as desired. The opening 1 in lasts L, through which the drilling and screw-inserting operations are to occur, will vary as to the angles they make with the vertical axes of the last-cones,

and to compensate for this the angle of the entire work-support D is correspondingly altered. Projecting from the blocks 28 are gear-segments 46, with which mesh segmental pinions 48 upon a shaft 50 journaled in the lower carrier l4. At the left-hand end of the shaft, worm-gearing 52 connects it to a shaft 54 extending in the carrier M from front to rear of the machine-and having upon it a hand-wheel 56. When this is turned by the operator, the movement is communicated through the shafts and pinions to the segments 46, and thus the angle of the work-support upon the levers 26 about the axes of the projections 30 altered and maintained.

The upper carrier I8 is pivoted about a shaft (Figs. 2 and 8) journaled horizontallyat the rear of the lower carrier l4, and has mounted upon it the spaced arms 20, 20 provided at their forward extremities with curved pads 64, 64 arranged for engagement with the opposite sides and rear of a heel to be attached. The pads are secured to forward sections of the arms, which are swiveled upon projections 65 to turn about generally horizontal axes. This permits selfadjustment of the engaging surfaces of the arms to heels of different contour. Each of the projections 65 is formed upon a slide 66 movable in vertical ways in the rear section or bodyportion of the arm. Into each slide, a vertical screw 51 is threaded, the knurled head 69 of said screw turning in a slot in the carrier l8 to prevent longitudinal movement. By rotating either screw, the operator may position the corresponding pad 64 to most advantageously engage the particular form of heel being operated upon. Rotatable in spaced opposite side walls of the carrier I8 is a rightand-left screw 68. This screw is threaded through the body-portions of the heel-engaging armsZO, which are prevented from turning about the screw b-y upward projections upon each of which is a roll 18 running in a slot 12 in a bridge-piece l4 spanning the space between the side walls of the upper car'- rier. The arms 25 are arranged to be moved toward or from each other simultaneously by rotation of the screw 68, this being for the purpose of admitting, clamping and releasing a heel, and to be swung down and up to force the heel against the heel-seat of a shoe and to relieve the pressure. The movement of the arms is accomplished by a 'rod '16 (Figs. 1 and 4), movable longitudinally through the right-hand side of the lower carrier and also rotatable in its mounting. It has upon its forward end a handle 18 by which it may be both reciprocated and rotated. In the longitudinal movement of the rod, spiral teeth 83 upon it mesh with a spiraltoothed segment secured to the pivot-shaft 6B of the carrier 14. Also fast upon this shaft 80 is a segment 92, meshing with a pinion 94 upon the right-and-left screw 68. 'Therefore, the teeth 88 of the rod, acting as a rack, rotate the screw through the intermediate gearing to carry the arms 20 oppositely either into or out of contact with the heel. During this longitudinal movement of the rod, it passes along a rack 96 (Figs. 2 and 11) mounted upon the side of the carrier 58 and splined into said rod. The teeth upon this rack are inclined, and, when the rod is rotated, its teeth 88, which circumferentially extend about only a portion of said rod, intermesh with the rack-teeth. The action of this rotation is to produce, through the camming effect resulting from the engagement of the opposed inclined teeth, a final longitudinal movement of the rod. This, by its action upon the right-and-left screw, urges the pads 64 of the arms forcibly against the heel and then locks said arms in their clamping position. The screw 58 has some capacity for axial play in its mounting, so the pressure of the arms upon the opposite sides of the heel may be equalized. Splined upon the rear extremity of the rod- 7615 a segmental pinion 80 (Fig.3), retained against longitudinal movement in the upper carrier I8 and meshing with rack-teeth BI formed upon the lower edge of a plat-e 82 guided in the lower carrier I4. In this bar are cam-slots 86, 85, which receive rolls 84 rotatable upon the upper carrier. When the rod I6 is rotated, the camplate is reciprocated, and the upper carrier is tilted vertically to either force the pads 54 down upon the heel or to raise them from it. Consequently, as the rotation of the rod applies final lateral clamping pressure to the heel, it settles it vertically firmly upon the heel-seat.

In placing the cone of a last L upon the surface I6 of the lower carrier I4 of the worksupport D, the operator permits the forepart of the shoe to rest upon a member Hit (Figs. 1, 2

and 4), which is curved transversely of the ma-' chine and carried by a vertical spindle I02. This spindle is movable through, and may be clamped by a screw IBI in, a cross-piece IE3 secured upon the forward ends of two spindles IM, H14, which are adjustable horizontally through the lower carrier. A screw I56 draws together a divided bearing for one of the spindles I94 to secure the cross-piece horizontally. By varying the position of the support I38 both horizontally and vertically, it may be adapted for such engagement with the forepart of a shoe that the end of the last-cone will rest properly upon the surface Iii.

Initially, or at the beginning of an operating cycle, the levers 26, 26 are in such angular positions that an opening IE8 (Fig. 6) in the carrier I4 is alined with the drill mechanism A. When the drilling operation has been completed, the support-opening is transferred to a point above the tool of the inserting mechanism B by tilting the levers 26 about their fulcra. They are connected at their lower extremities by a link IIO, having ways II2 inclined upwardly and forwardly and receiving a projecting portion I14 (Fig. 1) of a lever Hf fulcrum-ed at II upon the frame-column I3. To oscillate the lever, there is rotatable upon its lower end a roll H8, entering a cam-groove I20 in a cylindrical member I22 fast upon a shaft I24, journaled in the lower portion of the frame. The character of the connection between the link III! and the lever H6 is such that the extent of movement of the opening I68 is unvaried, regardless of the vertical adjustment of the work-support by the crank 44. The cam-shaft I24 is rotated through a gear I26 from a pinion I27 on a main driving shaft I28 carrying tight and loose belt-pulleys I29. Connection between the shaft and gear is effected through clutch mechanism C, which, when twice tripped by a treadle T, causes the machine to perform a divided cycle.

The mechanism C (Fig. 1) comprises the clutch-proper c, which may be of the pin-type and which turns the pinion I27 when the treadle T is depressed by the operator to effect clutchengagement. The treadle, normally held raised by a tension-spring 3B0 to the extent permitted by a stop-screw 3M, has a plunger 3%2 urged up by an extension-spring 334. The upper extremity of the plunger engages the lower end of a substantially vertical arm 3516 of a bell-cranklever 3%8, fulcrumed near the bottom of the frame-column, to allow a horizontal arm SW of the bell-crank to be raised by a tension-spring 3H to a position in which it will maintain the sections of the clutch separated, so the pinion I2! is at rest. An upwardly extending arm M2 of the bell-crank 308 contacts with the end of a Substantially vertical arm 3M of a bell-cranklever 3I6, these arms being drawn yieldably together by the spring 3 connecting them. A horizontal arm 32B of the bell-crank 3I6 carries a roll 322 projecting into a cam-groove 324 formed in one face of the gear I26. When the operator actuates the treadle, its plunger 302 forces aside the lever-arm 396, lowering the arm m to free the clutch 0, so this is engaged and rotation of the pinion I2! is initiated to drive the camshaft I24. At this time, the spring 3| I yields. The plunger 302 passes the end of the arm 306 and releases it, so the arm 3J6 tends to rise under the influence of the spring 3H into position for disengaging the clutch 0. But as the gear I26 rotates, its cam-groove 324 causes the bell-crank 3H5 to force its arm 3H5 againstthe arm 3I2 of the bell-crank 368. This retains the lever-arm em in its inactive relation, so the clutch continues to drive the pinion I27 through the desired number of turns to give partial rotation of the gear I26 and produce the first period of the divided cycle. At this time, the camgroove so positions the bell-crank 3E8 that the arm M6 is raised to open the clutch, and rotation of the cam-shaft I213 stops. Then, upon the succeeding depression of the treadle by the operator, the clutch is engaged as before, the cam-groove in the now rotating gear permitting the bell-crank 3H3 to assume its initial position and the lever-arm am to rise and disengage the clutch as the final turn of the pinion I2'I is completed. Thus, the second period of the cycle comes to an end. Each time the operator releases the treadle, an inclined end face 326 upon the plunger 392 strikes a complementally inclined face 328 upon the lever-arm 3%. This cams down the plunger, so it may be drawn past the lever-arm by the spring 380, ready for the succeeding operation. The purpose of the divided cycle will be stated in connection with the outline of operation of the machine.

Considering the drilling mechanism A, there is arranged to both rotate in and reciprocate vertically through the left-hand side of the casting I2, a spindle I40 (Fig. 6). At the upper extremity of the spindle is a bore to receive the tubular shank I lI of a chuck I42. In this chuck, a drill I44 may be secured by a set-screw I46, it being movable through an opening I47 in the closed top of the column It. Thefianged lower portion of the chuck is rotatable about the enlarged end I45 of the spindle, there being upon opposed surfaces of the two members opposite projections I48 and Ifit. Interposed between the lower extremity of the chuck and the bottom of the bore in the spindle is a compressionspring I52, resting upon an antifriction-ball I54. The spring elevates the chuck to an extent permitted by contact of a separable ring I55, at the bottom of said chuck, with the spindle-enlargement Hi5. This normally separates the projections I48 and I58, so the drill is at rest. When, however, the point of the drill strikes the work, compression of the spring allows the spindle-projection I50 to rise into the plane of the chuck-projection M8, and the rotation of the drill begins. The drill bottoms upon a screw I56 threaded into the drill-receiving passage of the chuck. The drill is provided with a slot arranged to receive a bit or projection I59 at the upper extremity of the screw. By this engagement, upon rotation of the drill after the set-screw I46 is loosened, the height of the drill in the chuck may be varied. Constant rotation is imparted to the spindle I46 by spiral gearing I60 joining it to a shaft I62, journaled horizontally in the frame-column and rotated by beltgearing I64 from a parallel shaft I63, journaled at the bottom of the column and geared to the driving shaft I28 at I65.

To reciprocate the spindle I49, so the drill may be elevated to perform its operation upon the work and retracted, a gear-segment I66 furnishes an arm of a bell-crank-lever I68 fulcrumed eat I69 upon the frame-column and oscillated by the entrance of a roll I upon it into a. cam-groove I12 in one face of the cylinder I22. The segment engages a pinion I14 fast upon a shaft I16, journaled horizontally in the frame adjacent to the spindle I00. Attached at one extremity to the shaft I16 is a torsionspring I18 (Fig. 6), which, at its opposite end, is received in an opening in a gear l6!) rotatable about the shaft I16. This gear has teeth so curved as to properly engage circular teeth I82 formed about the lower end of the spindle I49. When movement of the cam-groove I12 causes the bell-crank-lever I68 to turn the pinion I16, force is transmitted through the torsion-spring to the gear I80 to raise the drill-spindle. As a result of this yieldable actuation, if the drill in its elevation contacts with some object in the work, such as a shank-piece, which might cause break-age, injury to the elements is prevented.

As to the mechanism B for inserting a screw 1), this includes a spindle I99 guided for vertical movement through an upwardly extending tubular portion I9I of the casting I2, and having located within an axial bore a concentric inner spindle I92. Threaded upon the upper extremity of the latter spindle is a chuck I94, movable through an opening 95 in the top of the column and provided with a slot I96 to receive the circular head of the standard temporary-attaching screw 1). The chuck is ccunterbored at 200, into which counterbore fits the washers w which the screw carries. By the engagement of the screwhead with the slot and the washers with the counterbore, the screw is compelled to turn with the chuck and the shank of said screw is held in substantial alinement with the inner spindle I92. Surrounding this spindle, and somewhat spaced from the chuck, is a connecting and driving sleeve 204, upon which is a tooth 266 for engagement with a tooth 208 upon the upper extremity of the outer spindle I90. These teeth or projections are held no mally separated by a spring 2I0 interposed between the lower end of the inner spindle and the bottom of the bore in the outer spindle. Extending horizontally from the spindle I92 is a projection 2I2 lying within a cam-slot 2M in the sleeve 264. Connecting the upper end of the driving sleeve to the chuck I94 is a torsion-spring 2I6 stronger than the spring 2 Relative vertical movement of the two spindles is limited by a projection 2I8 from the outer into a circumferential slot 220 in the inner. This projection is extended circumferentially of the spindles for the sake of strength. It will be seen that when the chuck has received a screw b and the outer spindle I90 is elevated, the inner spindle I92 will be correspondingly raised until the screw, co-operating with the hole which has been drilled in the Work, encounters sufficient resistance to compress the spring 2l0. When this occurs, since the strength of the spring 2| 6 prevents its compression, the tooth 208 will rise into the plane of the tooth 206, and when they are engaged the rotation of the spindle I90 will drive the sleeve 204. This, in turn,

will communicate the rotation through the torsion-spring 2I6 to the chuck I94, and thus turn the screw 11, causing its insertion in the drilled hole. This continues until the resistance to rotation of the screw, because of the fact that its insertion is nearly or quite completed, causes the flexing of the spring 2I6 and the relative movement of the sleeve 204 and the projection 2I2 longitudinally of the spindle-axis. When the spring is thus flexed, the washers w upon the screw will generally have come into contact with the end of the cone of the last L and there will be exerted the maximum force, acting against this resistance, to set the screw and to draw the heel H firmly against the heel-seat of the shoe S. Since the inner spindle cannot descend, because at this time the projection 2I8 is at the top of the slot 220, the efiect of the relative movement between the slot 2H! and the projection 2I2 is to cam up the sleeve 204, compressing the convolutions of the torsion-spring 2I6. This separates the projections 206, 208 and stops the rotation of the screw. With the sleeve thus released, it will assume its initial circumferential relation to the inner spindle I92, and if the full elevation of the spindle I has not been completed, theprojections 296 and 208 will again be engaged. An added rotating force will therefore be applied to the screw b to an extent permitted by the resistance of the torsion-spring 2 I6.

The manner of elevation of the spindle I90 of the inserting mechanism resembles that of the spindle I 40 of the drilling mechanism. At the opposite face of the cam-cylinder I22 from that containing the groove I12 which oscillates the bell-crank-lever I68, is another cam-groove 230 (Fig. 1) for producing the oscillation of a bellcrank-lever 232, a roll 233 upon which enters the groove. A gear-segment 234 upon this lever engages a pinion 236 upon a shaft 238, rotatable in the frame in alinement with the shaft I16. A torsion-spring 240 (Fig. 6) joins the shaft to a gear 262, which meshes with the circular teeth 244 upon the spindle I96. Consequently, the advance of the tool is effected yieldably, so damage will not be caused by excessive resistance to movement, as by tearing out the thread which the screw 11 forms in the work. The spindle I90 is rotated, as in the companion mechanism, from the constantly rotating shaft I62 through spiral gearing 206.

To hold the screw 2) in the proper position to enter the opening I in the last L and be turned into the work, there is associated with the inserting mechanism B a pair of screw-engaging fingers 266, 259. These are pivoted at 252 at opposite sides of the passage in the guide-portion I9I of casting I2, through which the screw-inserting spindles operate, and are bent in at their upper extremities 264 above the end of the guideportion, being there formed with depressions to admit the end of the screw. At the inner side of each finger-end 254 is a wall 256, inclined upwardly and inwardly, to direct the screws into the opening furnished by the depressions. Each finger is fast upon its pivot-portion 252, and there are also secured to these pivots respective arms 253 and 260 (Fig. 10). The arm 258 has a projection 262 entering a slot lying longitudinally of the arm 260. This latter arm is extended outwardly at 264 and has attached to it at 266 a vertical rod 268 (Fig, 1), forced normally down by a spring 210. At the lower end of the rod a roll 212 is rotatable, this resting against a cam 214 upon the shaft 238. This cam is of such con.

tour, that during a period of rest the fingers are separated against the closing force of the spring, so the operator may insert the head of the screw 11 into the slot of the chuck I94. When the cam. rotates, it allows the fingers to be closed by the spring to aline the screw for its insertion, they being thereafter separated, so the chuck may rise and turn said screw into the work. The screw is held in approximately the true axial relation at the time of its introduction into the chuck, by its washers w fitting closely within the counterbore 206.

At the beginning of an operating cycle, the drill I44 of the mechanism A is raised through the opening I41 in the top of the column It and through the opening I98 of the Work-carrier IQ, with its point above the surface I6 of the latter, its spindle I40 being in rotation. The drill, however, is at rest, because the spindle-projection I59 and the chuck-projection Hi8 are separated vertically. It therefore cannot bore into the last-cone, through accidental contact with it. The chuck I94 of the inserting mechanism B is lowered, contains a screw 1), and its spindle ISO is rotating. The screw is alined with the spindle, and therefore with the opening I95 at the top of the column, by the finger 250, closed by the cam 276. The operator, taking a shoe S and a heel H, places the crown of the cone of the last L in the former upon the surface I6 of the support D, with the last-passage receiving the elevated and stationary drill-point to correctly locate the work. The forepart of the shoe supported by the rest IGEI. The heel, with adhesive applied to its cup, is placed upon the heelseat of the shoe, and the rod I6 pulled forward by the handle I8 to turn the rightand-left screw 68, bringing the pads 6% of the previously open arms 29 into preliminary contact with the opposite sides of the heel. As this engagement with the work is effected, the rod is rotated clockwise by the handle to produce, through the engagement of the teeth 88 upon the rod and on th fixed rack 95, a final clamping of the pads against the heel and to lock the arms against retraction. Simultaneously, the rotation of the rod shifts the cam-plate 82, forcing the cup of the heel against the heel-seat by the tilting of the carrier I8. The treadle T of the machine is now depressed, causing the mechanism C through the clutch c to rotate the cam-shaft I24 for the first period of the divided cycle. The cam-groove H2 at the left end of the cylinder I 22 causes the elevation of the constantly rotatingdrill-spindle I68, so the drill passes through the opening in the last and, upon engagement of its point with the insole of the shoe, is driven to produce in the heelseat and heel a hole of the desired depth (Fig. 4). It is then retracted to a point below the carrier I4 of the support (Fig. 6). For the particular last in use, the depth of drilling will have been determined by the height of the work-support D, through elevation or depression of the slide 22, with the carrier-levers 25, as a result of rotation of the crank M (Fig. 1). The angle of the last-opening, to agree with that of the drill, will also have been determined by tilting the work-support about the projections 39, through rotation of the hand-wheel 55 (Fig. 2). When the cam-groove I12 has completed this operation of the drilling mechanism A, the peripheral groove I28 in the cylinder I22 shifts the worksupport from its position at the left of the frame to the right, so the table-opening m8 and the last-passage l of the clamped work are now alined with the column-opening I95 above the inserting mechanism 13. The cam-groove 2 39 at the right end of the cylinder produces the elevation of the rotating spindle I with the screw 1) which it carries in the non-rotating chuck I94. The fingers 250, 258 remain closed, as the screw first rises, it separating them against the force of the spring 210 and being maintained in alinement with the last-passage. But when the point of the screw is within the passage, so it cannot be displaced laterally, the fingers are opened by the cam 214 to permit the movement of the chuck I34 between them. When the screwthreads engage the wall of the drilled opening in the work, its rotation begins through the engagement of the tooth208 upon the spindle IEII] with the tooth 255 of the driving sleeve 2%, and it is turned home. At the termination of the first period of the cycle, the machine stop-s with drill I44 lowered and the chuck I94 raised, both being at rest and the fingers 258 now being open. The operator reversely rotates and thrusts back the rod Iii to unlock and retract the arms 20. He then removes from the support the released shoe with its temporarily attached heel, applies another screw to the chuck I94 and again treadles. The clutch c is reengaged to complete the cycle. At this time, the fingers close against the screw to aline it; the chuck with the screw is lowered to its normal position; and the work-support travels to the left, into co-operation with the drilling mechanism A. This is as represented in Fig. 6. Finally, the drill is elevated, so that it will be above the surface It of the work-support ready to position the succeeding work. This completes the full cycle, and the mechanism C opens the clutch c to stop the cam-shaft.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a fastening-inserting machine, means for forming a hole in a work-piece and for inserting a fastening therein, said means being located at different operating stations, a movable worksupport, and means acting under the power of the machine for moving the support from'the hole-forming to the fastening-inserting station and reversing the travel of the support to return it to the hole-forming station.

2. In a screw-inserting machine, rotatable operating means for forming a hole in a workpiece and for inserting a screw therein, a movable work-support, and means acting under the power of the machine for reciprocating the support to present the work to the operating means for the successive formation of the hole and the turning of the screw into said hole and for de-. termining the time of operation of the operating means.

3. In a machine for attaching heels to shoes upon lasts, a support for a lasted shoe, means operating through the last for forming a hole in the heel-seat of the supported shoe and in an applied heel and for inserting a fastening in the hole thus formed, and means acting under the power of the machine for moving the support and operating means relatively to present'the lasted shoe successively for the forming and. inserting operations.

4. In a machine for attaching heels to shoes upon lasts, a support for a lasted shoe, means operating through the last for forming a hole in the heel-seat of the supported shoe and in an applied heel and for inserting a fastening in the hole thus formed, and means acting under the power of the machine for moving the support and operating means relatively to present the lasted shoe successively for the forming and inserting operations and for moving the operating means to produce through the last the forming operation and thereafter the inserting operation.

5. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned and retained against movement to receive the action of the drill, and means for moving the support to a position to receive the action of the inserting device, holding it against movement during such action and then returning it to its initial position at the drill.

6. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, means for moving the support to a position to receive the action of the inserting device and then returning it to its initial position at the drill, and means acting while the support is at the inserting device for temporarily retaining said device in its inserting position to receive the succeeding fastening.

7. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, and means for moving the support to a position to receive the action of the inserting device, for returning it to its initial position at the drill and for retracting the device for the return of the support.

8. In a machine for operating through passages in lasts within shoes, 2. work-support having a surface upon which the cone of a last may rest, a tool movable through the passage to operate upon the supported work, and means for advancing the tool through a portion only of its operating movement above the support-surface, for stopping the tool to permit the application thereto of the last-passage and for completing its operating advance.

9. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, means for moving the support to a position to receive the action of the inserting device and then returning it to its initial position at the drill, and means for advancing the drill through a portion only of its operating movement while the support is in its initial position, for stopping said drill to serve as a gage for the work and for completing its operating advance.

10. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, means for moving the support to a position to receive the action of the inserting device and then returning it to its initial position at the drill and for retracting the device for the return of the support, and means for advancing the drill through a portion only of its operating movement while the support is in its initial position, for stopping said drill to serve as a gage for the work and for completing its operating advance.

11. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, and a cam constructed and arranged to move the support to a position to receive the action of the inserting device and to then return it to its initial position at the drill.

12. In a fastening-inserting machine, a reciprocatory drill, a reciprocatory fastening-inserting device, a work-support initially positioned to receive the action of the drill, a cam constructed and arranged to move the support to a position to receive the action of the inserting device and to then return it to its initial position at the drill, a cam for reciprocating the drill, and a cam for reciprocating the inserting device.

13. In a heel-attaching machine, a frame-column, a work-support mounted thereon, a secondary frame separably secured against movement within the column, and drill mechanism and fastening-inserting mechanism movable upon the secondary frame through the top of the column in co-operation with the work-support and being removable together from the column upon the secondary frame.

14. In a heel-attaching machine, a main frame, a work-support mounted thereon, a secondary frame separably secured to the main frame, drill mechanism and fastening-inserting mechanism movable upon the secondary frame in co-operation with the work-support and being removable together from the main frame upon the secondary frame, and gearing having intermeshing portions carried respectively upon the main frame and upon the secondary frame for actuating the drill mechanism and the fastening-inserting mechanism.

15. In a fastening-inserting machine, a support arranged to receive contact of the cone of a last within a shoe, a tool for operating upon the work through the support and through a passage in the last, an actuating member by which the tool is carried, means for moving the actuating member normally through an unvarying distance to produce the action of the tool upon the work, and means arranged to change the initial relation between the support and actuating member and thereby compensate for different heights of last cones.

16. In a machine for inserting heel-attaching screws through passages in lasts within shoes, said screws entering heels applied to the heelseats of the shoes and bearing upon the cones of the lasts, a support for the lasted shoes, a screw-driver co-operating with the support for engagement with the screws, a rotatable spindle for the screw-driver, means for reciprocating the spindle normally through an unvarying distance in its action upon the screws, and means arranged to move the support in the direction of reciprocation of the spindle as the cones of the lasts differ in height.

17. In a heel-attaching machine, a drill, a screw-driver, means for rotating and reciprocating the drill and screw-driver, a support upon which a shoe and heel may be subjected to the action of the drill and screw-driver, means for moving the support to present the work successively to said drill and screw-driver, and means arranged to move the support toward and from the drill and screw-driver.

18. In a heel-attaching machine, a frame, a reciprocatory tool movable upon the frame for operating upon a heel, a slide guided upon the frame, a, support for a shoe and heel carried by the slide and with which the tool co-operates, means including a rotatable gear through which the slide is movable, and means arranged for actuation by the operator and extending to the front of the frame for rotating the gear.

of the slide, gearing connecting the shaft and frame, an operator-controlled shaft journaled upon the slide and extending toward the front of the machine, and gearing connecting the shafts.

21. In a heel-attaching machine for operating through passages in lasts within shoes, the passages in different lasts differing in their angular relation to the axes of the last-cones, a support against which the crown of a last may rest, a tool operating through the support and last-passages, and means arranged to change the angle between the tool and the passage in the supported last to compensate for variations in the lastpassages.

22. In a heel-attaching machine for operating through passages in lasts within shoes, the passages in different lasts differing in their angular relation to the axes of the last-cones, a support upon which the cone of a last may rest with the shoe bottom-up, a tool operating upwardly through the support and last-passages, and means arranged to change the angle of the support to compensate for variations in the lastpassages.

23. In a heel-attaching machine for operating through passages in lasts within shoes, the passages in different lasts differing in their angular relation to the axes of the last-cones, a support upon which the cone of a last may rest with the shoe bottom-up, a tool operating upwardly through the support and last-passages, and

means arranged to change the angleof the support to compensate for variations in the lastpassages, such angular movement occurring about an axis approximately intersecting the longitudinal axis of the tool.

24. In a heel-attaching machine, a movable tool for operating upon a heel, a work-support with which the tool co-operates, a movable member upon which the support is pivotally mounted, a shaft journaled upon the support for rotation by the operator, and gearing connecting the mounting member and the shaft.

25. In a heel-attaching machine, a movable tool for operating upon a heel, a work-support with which the tool co-operates, a movable member upon which the support is pivotally mounted,

a shaft journaled transversely of the support, gearing connecting the mounting member to the shaft, a shaft journaled upon the support and extending toward the front of the machine for rotation by the operator, and gearing connecting the shafts.

26. In a heel-attaching machine, a plurality of movable tools for operating upon a heel, a worksupport with which the tools co-operate, a member upon which the support is pivotally mounted and which is movable to present the supported work to either of the tools, and means joining the mounting member to the support and arranged to vary the angle of said support.

2'7. In a heel-attaching machine, a plurality of movable tools for operating upon aheel, Ia worksupport with which the tools co-operate, spaced levers, mounting members pivotedupon the levers and upon which the support is pivoted, and gearing connecting one of the mounting members to the support and arranged for actuation by the operator.

28. In a heel-attaching machine, a drill and a screw-driver mounted side by side, means for rotating and reciprocating the drill and screwdr ivena support for a shoe and heel, means for moving the support to subject the shoe and heel alternately to the action of the drill and screwdriver, means arranged to move the support toward and from the drill and screw-driver, and means arranged to vary the angle of the support.

29. In a heel-attaching machine, a shoe-support, opposite heel-clamps co-operating with the support, and an actuating member having a compound movement, one of the components of said movement causing the clamps to engage a heel upon a supported shoe and another of the components acting to force the heel against the heelseat of said shoe.

30. In a heel-attaching machine, a shoe-support, opposite heel-clamps co-operating with the support, and an actuating member having a compound movement, one of the components of said movement causing the clamps to engage a heel upon a supported shoe and another of the components acting to produce a final clamping effect.

31. In a heel-attaching machine, a shoe-support, opposite heel-clamps co-operating with. the support, and an actuating member having a compound movement, one of the components of said movement causing the clamps to engage a heel upon a supported shoe and another of the cornponents acting to produce a final clamping effect and to force the heel against the heel-seat of said shoe.

32. In a heel-attaching machine, a shoe-support, opposite heel-clamps co-operating with the support, and an actuating member having a movement of reciprocation and rotation, the reciprocatory movement causing the clamps to engage a heel upon a supported shoe and the rotary movement acting to force the heel against the heel-seat.

33. In a heel-attaching machine, a shoe-support, a right-and-left screw mounted adjacent to the support, opposite heel-clamps threaded upon the screw to receive upon its rotation a bodily movement, and means arranged to rotate the screw.

34. In a heel-attaching machine, a shoe-support, a right-and-left screw mounted adjacent to the support, opposite heel-clamps threaded. upon the screw to receive upon its rotation a bodily movement, means for preventing the clamps from tilting upon the screw, and means arranged to rotate the screw.

35. In a heel-attaching machine, a shoe-support, a right-and-left screw mounted adjacent to the support, opposite heel-clamps threaded upon the screw, a reciprocatory rod provided with teeth, and gearing connecting the toothed rod to the screw.

36. In a heel-attaching machine, a shoe-support, a right-and-left screw mounted adjacent to the support, opposite heel-clamps threaded upon the screw, a rotary and reciprocatory rod provided with teeth, gearing connecting the toothed rod to the screw, and a stationary toothed member into engagement with which the teeth of the rod may be turned.

37. In a heel-attaching machine, a Shoe-support, a carrier pivoted adjacent to the support, opposite clamps mounted for bodily movement along the carrier to engage a heel, and means arranged to rock the carrier about its pivot to :force the engaged heel against the heel-seat of a :supported shoe.

38. In a heel-attaching machine, a shoe-support, a carrier pivoted adjacent to the support, opposite clamps movable upon the carrier to en- :gage a heel, a cam movable to rock the carrier about its pivot, and means arranged to actuate the cam.

39. In a, heel-attaching machine, a shoe-support, a carrier pivoted adjacent to the support, opposite clamps movable upon the carrier to engage a heel, a reciprocatory cam engaging the carrier, a member movable upon the support by the operator, and gearing connecting said member with the cam.

40. In a heel-attaching machine, a shoe-support, a carrier movable adjacent the support, a right-and-left screw rotatable upon the carrier, opposite heel-clamps threaded upon the screw, means arranged to turn the screw, and interengaging means upon the carrier and clamps whereby tilting of the clamps upon the screw is prevented.

41. In a heel-attaching machine, a shoe-support, a carrier pivoted upon the support, a rightand-left screw rotatable upon the carrier, opposite heel-clamps threaded upon the screw, a rod movable upon the support, and means whereby movement of the rod will rotate the screw and tilt the carrier upon the support.

42. In a heel-attaching machine, a shoe-support, a carrier pivoted upon the support, a rightand-left screw rotatable upon the carrier, opposite heel-clamps threaded upon the screw, a cam movable upon the support and acting upon the carrier, a rotary and reciprocatory rod movable upon the support, gearing connecting the rod and screw, and gearing connecting the rod and cam.

43. In a heel-attaching machine, a shoe-support, a carrier pivoted upon the support, a rightand-left screw rotatable upon the carrier, opposite heel-clamps threaded upon the screw, a cam movable upon the support and acting upon the carrier, a rotary and reciprocatory rod movable upon the support, gearing connecting the rod and screw, gearing connecting the rod and cam, the gearing between the rod and screw having spiral teeth, and a rack provided with spiral teeth fixed in the support and into engagement with which the spiral teeth of the rod-gear may move.

44. In a heel-attaching machine, a shoe-support, a carrier movable adjacent the support, opposite heel-clamps having body-portions movable toward and from each other upon the carrier, slides movable upon the body-portions, and heelengaging portions swiveled upon the slides.

45. In a heel-attaching machine, a shoe-support, a carrier movable adjacent the support, a right-and-left screw rotatable upon the carrier, spaced arms threaded upon the screw, slides movable upon the arms, heel-engaging pads swiveled upon the slides, and means arranged to rotate the screw.

46. In a heel-attaching machine, a shoe-support, a carrier movable adjacent the support, a right-and-left screw rotatable upon the carrier, spaced arms threaded upon the screw, slides movable upon the arms, heel-engaging pads swiveled upon the slides, and means arranged to rotate the screw and to rock the carrier upon the shaft.

4'7. In a heel-attaching machine, a plurality of tools for operating upon a heel, spaced levers, a work-support pivotally mounted upon the levers and with which the tools co-operate, and means for oscillating the levers to present the worksupport to diiferent tools.

48. In a heel-attaching machine, a plurality of tools for operating upon a heel, spaced levers, a work-support pivotally mounted upon the levers and with which the tools co-operate, a link connecting the levers, a lever acting upon the link, and a cam for oscillating the last-mentioned lever.

49. In a heel-attaching machine, a plurality of tools for operating upon a heel, a slide, means arranged to differently position the slide, spaced levers fulcrumed upon the slide, a work-support pivotally mounted upon levers and with which the tools co-operate, and means for oscillating the levers.

50. In a fastening-inserting machine, a worksupport movable between hole-forming and fastening-inserting positions and reversely, means movable at the respective positions to form a hole in a supported work-piece and to insert a fastening therein, said means performing the operations in a divided cycle with an intermediate period of rest occurring while the worksupport is at the hole-forming position, and a member arranged for actuation by the operator to initiate the successive portions of the cycle.

51. Ina fastening-inserting machine, a worksupport, means reciprocable to form a hole in a supported work-piece and to insert a fastening therein, said means performing the operations in a divided cycle with an intermediate period of rest occurring after the insertion of the fastening and before the retraction of the inserting means, and a member arranged for actuation by the operator to initiate the successive portions of the cycle.

52. In a, fastening-inserting machine, a worksupport, means reciprocable to form a hole in a supported work-piece and to insert a fastening therein, said means performing the operations in a divided cycle with an intermediate period of rest occurring after the insertion of the fastening and after a partial advance of the hole-forming means, and a member arranged for actuation by the operator to initiate the successive portions of the cycle.

53. In a fastening-inserting machine, a worksupport, means reciprocable to form a hole in a supported Work-piece and to insert a fastening therein, said means performing the operations in a divided cycle with an intermediate period of rest occurring after the insertion of the fastening and before the retraction of the inserting means and after a partial advance of the hole-forming means, and a member arranged for actuation by the operator to initiate the successive portions of the cycle.

54. In a heel-attaching mechanism, a support for a shoe with an applied heel, movable drill mechanism and fastening-inserting mechanism co-operating with the support, clutch mechanism through which the drill and fastening-inserting mechanisms are moved, a controlling member movable by the operator to cause the engagement of the clutch mechanism, said member thereupon releasing the clutch mechanism, and means movable under the power of the machine for temporarily maintaining the engagement of the clutch mechanism and thereafter disengaging said mechanism to terminate one portion of an operating cycle in preparation for a second movement of the controlling member by the operator to complete the operating cycle.

55. In a heel-attaching mechanism, a support for a shoe with an applied heel, movable drill mechanism and fastening-inserting mechanism co-operating with the support, clutch mechanism through which the drill and fastening-inserting mechanisms are moved, a member movable by the operator to cause the engagement of the clutch mechanism, said member thereupon releasing the clutch mechanism, and means movable under the power of the machine for ternporarily maintaining the engagement of the clutch mechanism and thereafter disengaging said mechanism to terminate one portion of an operating cycle, the power-operated means upon the succeeding movement of the operator-controlled member permitting a second disengagement of the clutch mechanism to terminate the second portion of the operating cycle.

56. In a heel-attaching machine, a support tor a lasted shoe, the last being provided with a passage through its cone, a drill adapted to bore a hole through the heel-seat of the shoe into an applied heel, said drill being arranged to enter the last-passage and by its engagement with thelast to position the work upon the support, and

means for clamping the positioned work upon the support.

57. In a, heel-attaching machine, a support for a lasted shoe, the last being provided with a passage through its cone, a drill arranged to enter the last-passage to position the work upon the support, means for clamping the positioned work upon the support, means for reciprocating the drill through the last-passage, and means for rotating the drill only after its contact with the insole of a shoe.

58. In a heel-attaching machine, a support for a lasted shoe, the last being provided with a passage through its cone, a drill arranged to, en-

ter the last-passage to position the work upon the support at an operating station, means for clamping the positioned work upon the support, means for rotating the drill, and means arranged to move the support and present the clamped work at a second operating station.

59. In a heel-attaching machine, a support for the cone of a last within a shoe, there being a passage through the last-cone, a drill arranged with its point extending beyond the last-engaging surface of the support, means for moving the support and drill relatively to cause contact through the last-passage between the drill point and the insole of the shoe, and means effective to rotate the drill only after said contact.

60. In a heel-attaching machine, a table provided with an opening, said table being adapted to support the cone of a last Within a shoe, there being a passage through the last-cone for registration with the table-opening, a drill having its point initially extending through the tableopening to enter the last-passage, and means for rotating the drill only after contact of its point with the shoe.

61. In a heel-attaching machine, a table pro-. vided with an opening, said table being adapted to support the cone of a last within a shoe, there being a passage through the last-.cone for registration with the table-opening, a drill having its point initially extending through the ab epeni o t r t e astassa e a ro a? able dri in ind e for h dril meanslf r r ciprocatin he s in l nd means. efi e tive rotate the drill upon reciprocation ef the spindle.

62. In a heel-attaching machine, a table rovided w th an p i d table bein ad pt to support the cone of a last within a shoe, there being a passage through the last-cone for regs rat o W t e t ble-ope i a d il ha in its point initially extending throu h the table-. opening to enter the last-passage, a chuck in which the drill is held, a rotatable driving spindle, means upon the spindle and chuck arranged for driving engagement, and a spring maintain,- ing the engaging means normally separated.

63. In a heel-attaching machine, a shoersupr port, a rotatable chuck provided with a passage, a screw threaded into the passage, a drill entering the passage and cooperating with the shoe-support, the screw and drill having an in.- terengaging depression and projection, and means for securing the drill in the chuck.

64. In a heeleattaching machine, a shoe-support, a tool-spindle co.-operat ing with the sup-. port, means for rotating the spindle, a movable actuating member, gearing connecting the actuating member and spindle to reciprocate said spindle, and means. for permitting an element of the gearing to yield during its action upon. the spindle.

65. In a heel-attaching machine, a shoe-support, a tool-spindle co-Operating with the support, means forrotating the spindle, a lever, means for oscillating the lever, gearing connecting the lever and spindle to reciprocate said spindle, and means permitting an element of the gearing toyield in its reciprocating action.

66. In a heel-attaching machine, a shoe-support, a tool-spindle co-operating with the support and provided with rack-teeth, means for rotating the spindle, a movable actuating member, a shaft, gearing connecting the actuating member and shaft, a gear arranged to turn about the shaft and meshing with the rackteeth, and a spring joining the shaft and gear.

6'7. In a heel-attaching machine, a shoe-support, and screw-inserting mechanism co-o-perating therewith and comprising a driving spindle, a screw-driver carried by th spindle, said screwdriver and spindle being arranged for relative longitudinal movement and a connecting member movable longitudinally of the spindle and screw-driver and yieldably joined to said screwdriver, the spindle and connecting member being provided with engaging portions.

68. In a heel-attaching machine, a shoe-support, and screw-inserting mechanism co-operating therewith and comprising a driving spindle, a screw-driver carried by the spindle, said screw, driver and spindle being arranged for relative longitudinal movement, a connecting member movable longitudinally of the spindle and screwdriver and yieldably joined to said screw-driver, the spindle and connecting member being provided with engaging portions and means for limiting the relative longitudinal movement of-the spindle and screw-driver.

69. In a heel-attaching machine, a shoe-support, and screw-inserting mechanism co-operating therewith and. comprising a driving spindle, a screw-driver carried by the spindle, said screwdrlver and spindle being arranged for relativelongitudinal movement, a connecting member movable longitudinally of the spindle and screwdriver and yieldably joined to said screw-driver the spindle and connecting member being provided with engaging projections and means carried by the connecting member and screw-driver for separating the projections upon yield of the connecting member.

70. In a heel-attaching machine, screw-inserting mechanism comprising a driving spindle, a screw-driver provided with a spindle, a spring interposed between the spindles to permit their relative longitudinal yield, a sleeve surrounding the screW-driver-spindle, said sleeve and driverspindle having engaging portions normally separated by the spring, a spring connecting the sleeve and screw-driver, and means arranged to produce relative longitudinal movement between the sleeve and the screw-driver-spindle.

71. In a heel-attaching machine, screw-inserting mechanism comprising a driving spind e, a screw-driver provided with a spindle, one of the spindles being provided with a projection extending into a depression in the other, a spring interposed between the spindles to permit their relative longitudinal yield, a sleeve surrounding the screw-driver-spindle, said sleeve and driverspindle having engaging portions normally separated by the spring, a Spr ng connecting the sleeve and screw-driver, and means arranged to produce relative longitudinal movement between the sleeve and the screw-driver-spindle.

'72. In a heel-attaching machine, screw-inserting mechanism comprising a driving spindle, a screw-driver provided with a spindle, the two spindles being concentric, a compression-spring interposed between the spindles to permit their relative longitudinal yield, a sleeve surrounding the screw-driver-spindle, said sleeve and driverspindle having engaging portions normally separated by the spring, a torsion-spring connecting the sleeve and screw-driver, and means arranged to produce relative longitudinal movement between the sleeve and the screw-driver-spindle.

'73. In a heel-attaching machine, screw-inserting mechanism comprising a driving spindle, a screw-driver provided with a spindle, the two spindles being concentric, a spring interposed between the spindles to permit their relative longitudinal yield, a sleeve surrounding the screwdriver-spindle, said sleeve and driver-spindle having engaging portions normally separated by the spring, and a spring connecting the sleeve and screw-driver, the sleeve and screw-driverspindle being provided with a cam-slot and a projection lying in said slot.

74. In a heel-attaching machine, a shoe-support, drill mechanism having a spindle co-operating with the support, screw-driver mechanism having a spindle co-operating with the support, means for moving the support to present a shoe upon it to either the drill mechanism or the screw-driver mechanism, means for rotating each spindle, a movable actuating member for each spindle, and gearing connecting each actuating member to its spindle to reciprocate said spindle when the work is presented to it.

75. In a heel-attaching machine, a shoe-support, drill mechanism having a spindle co-operating with the support, screw-driver mechanism having a spindle co-operating with the support, means for moving the support to present a shoe upon it to either the drill mechanism or the screw-driver mechanism, means for rotating each spindle, a movable actuating member for each spindle, gearing connecting each actuating member to its spindle to reciprocate said spindle when the work is presented to it, and means for permitting an element of the gearing for each actuating member to yield during its action upon the spindle.

76. In a heel-attaching machine, a shoe-support, drill mechanism having a spindle co-operating with the support, screw-driver mechanism having a spindle co-operating with the support, each spindle being provided with rack-teeth, means for moving the support to present a shoe upon it to either the drill mechanism or the screw-driver mechanism, means for rotating each spindle, two levers fulcrumed side by side, means for oscillating the levers, two alined shafts, gearing connecting the levers to the respective shafts, a gear rotatable about each shaft and meshing with the rack-teeth of one of the spindles, and a torsion-spring joining the gear to its shaft.

77. In a heel-attaching machine, a shoe-support, drill mechanism having a spindle co-operating with the support, screw-driver mechanism having a spindle co-operating with the support, each spindle being provided with rack-teeth, means for moving the support to present a shoe upon it to either the drill mechanism or the screw-driver mechanism, means for rotating each spindle, two levers fulcrumed side by side, a cylinder provided with cam-grooves in its opposite faces and acting upon the respective levers,

. two alined shafts, gearing connecting the levers to the respective shafts, a gear rotatable about each shaft and meshing with the rack-teeth of one of the spindles, and a torsion-spring joining the gear to its shaft.

78. In a machine for operating through passages in lasts within shoes, a fastening-inserting member movable toward and from the lastpassage, fastening-engaging members situated at opposite sides of the inserting member, and means for separating the engaging members to permit the application of a fastening to the inserting member and for closing said engaging members to aline the applied fastening with the last-passage.

'79. In a machine for operating through passages in lasts within shoes, a fastening-inserting member movable toward and from the last-passage, fastening-engaging members situated at opposite sides of the inserting member, means for separating the engaging members to permit the application of a fastening to the inserting member and for closing said engaging members to aline the applied fastening with the last-passage, and again separating the engaging members only after a portion of the fastening is within the last-passage.

80. In a heel-attaching machine, a screwinserting mechanism comprising a rotary and reciprocatory screw-driver, screw-engaging members situated at opposite sides of the driver, and means for separating the members to permit the application of a screw to the driver and for closing the members to alinethe applied screw with the driver.

81. In a heel-attaching machine, a screw-inserting mechanism comprising a rotary and reciprocatory screw-driver, screw-engaging mem- 'bers situated at opposite sides of the driver, means for separating the members to permit the application of a screw to the driver and for closing the members to aline the applied screw with the driver, and means for reciprocating the screw-driver to advance the alined screw into cooperation with the work before the members are separated.

82. In a heel-attaching machine, a screw-inserting mechanism comprising a rotary and reciprocatory screw-driver, screw-engaging members situated at opposite sides of the driver, means for separating the members to permit the application of a screw to the driver and for closing the members to aline the applied screw'with the driver, and means for reciprocating the screw-driver to advance the alin'ed screw into loo-operation with the work before the members are separated, there being inclined surfaces upon the members with which the screw may contact in its advance.

83. In a heel-attaching machine, a screw-inserting mechanism comprising a rotary and reciprocatory screw-driver, screw-engaging members situated at opposite sides of the driver, means for separating the members to permit the application of a screw to the driver and for closing the members to aline the applied screw with the driver, and means for reciprocating the screwdriver to insert the screw while the members are separated.

84. In a heel-attaching machine, a screw-inserting mechanism comprising a rotary and reci-procatory screw-driver, screw-engaging members situated at opposite sides of the driver, and means for separating the members to permit the application of a screw to the driver and for closing the members to aline the applied screw with the driver, said driver being provided with means for holding the screw in preparation for its 'alinement.

85. In a heel-attaching machine, a shoe-support, a rotary spindle, a screw-receiving chuck upon the spindle, means for reciprocating the spindle to carry the \chuck toward and from the support, screw-engaging fingers pivoted at opposite sides of the chuck, and means for separlating the fingers when the chuck is raised to the support and closing the fingers when the chuck is lowered from the support.

86. In a heelaattaching machine, a shoe-support, a rotary spindle, a screw-receiving lCh'llCk carried by the spindle, a guide for the spindle, means for reciprocating the spindle in the guide, screw-engaging fingers pivoted upon the guide, and means for turning the fingers upon their pivots for the reception of a screw by the chuck and for its alinement and insertion.

8'7. In a. heeL-attaching machine, a shoe-support, a rotary spindle, a screw-receiving chuck upon the spindle, means for reciprocating the spindle to carry the chuck toward and from the support, screw-engaging fingers pivoted :at opposite sides of the chuck, an arm extending from each finger, a rotatable cam, and means acted upon by the cam and connected to the arms for oscillating the fingers.

88. In a heel-attaching machine, a shoe-support, a rotary spindle, a screw-receiving chuck upon the spindle, means for reciprocating the spindle to carry the chuck toward and from the support, screw-engaging fingers pivoted at opposite sides of the chuck, an arm extending from each finger, there being a projection from one arm movable in a slot in the other, a rod fixed to one of the arms, and means for reciprocating the rod.

JOHN T. LANCASTER.

DISCLAIMER 2,293,834.J0hn T. Lancaster, Newton, Mass. "-FASTENING-INSERTING; MACHINE. Patent dated August 25, 1942. Disclaimer filed January 27, 1945, by the assignee, United Shoe Machinery Corporation.

Hereby enters this disclaimer to claims 5 and 7 of said Letters Patent.

[Oflicz'al (xazette February 27, 1.945 .1 

